Date: Thu, 27 Jan 2011 18:27:08 -0500 From: Jacob Frelinger <jacob.frelinger@duke.edu> To: Kostik Belousov <kostikbel@gmail.com> Cc: Alexander Best <arundel@freebsd.org>, freebsd-emulation@freebsd.org Subject: Re: odd regression in the linux emulator. Message-ID: <4D41FF4C.6050003@duke.edu> In-Reply-To: <20110127214918.GS2518@deviant.kiev.zoral.com.ua> References: <4D404145.5020507@duke.edu> <20110126175529.GA92874@freebsd.org> <4D4066F5.3070407@duke.edu> <20110126210843.GA21919@freebsd.org> <20110127214918.GS2518@deviant.kiev.zoral.com.ua>
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On 01/27/11 16:49, Kostik Belousov wrote: > On Wed, Jan 26, 2011 at 09:08:43PM +0000, Alexander Best wrote: >> On Wed Jan 26 11, Jacob Frelinger wrote: >>> On 01/26/11 12:55, Alexander Best wrote: >>>> could you provide the output of 'pkg_info -E linux_dist\*' please? >>> >>> [jolly@moku ~]$ pkg_info -E linux_dist\* >>> linux_dist-gentoo-stage3-20100622 >>> >>>> btw: i also experience the problem. newer versions of linux_dist come with >>>> linux binaries that make heavy use of futextes (even 'ls'). you should see >>>> a lot of futex warnings in 'dmesg -a'. >>> >>> linux: pid 8416 (gmake): linux_sys_futex: op FUTEX_WAIT_BITSET not >>> implemented >>> linux: pid 8907 (ls): linux_sys_futex: op FUTEX_WAIT_BITSET not implemented >>> linux: pid 8908 (ls): linux_sys_futex: op FUTEX_WAIT_BITSET not implemented >>> >>> yup. got those. I saw them before when everything was working though >>> so I assumed they weren't the problem... ls generates them but seems to >>> work just fine. >> >> i think you're right. the futex stuff doesn't seem to be causing problems. i >> performed a kdump -d/linux_ktrace sequence and this is the result: >> >> 8462 gmake RET write 67/0x43 >> 8462 gmake CALL linux_pipe(0xffffbe08) >> 8462 gmake RET linux_pipe 0 >> 8462 gmake CALL close(0x5) >> 8462 gmake RET close 0 >> 8462 gmake CALL linux_fcntl64(0x3,0x2,0x1) >> 8462 gmake RET linux_fcntl64 0 >> 8462 gmake CALL linux_rt_sigprocmask(0,0x806bfe0,0,0x8) >> 8462 gmake RET linux_rt_sigprocmask 0 >> 8462 gmake CALL linux_vfork >> 8462 gmake RET linux_vfork 8463/0x210f >> 8462 gmake CALL linux_rt_sigprocmask(0x2,0xffffbdb0,0,0x8) >> 8462 gmake RET linux_rt_sigprocmask 0 >> 8462 gmake CALL linux_wait4(0xffffffff,0xffffbe5c,0,0) >> 8462 gmake RET linux_wait4 RESTART >> 8462 gmake PSIG SIGCHLD caught handler=0x80541a0 mask=0x0 code=0x0 >> 8462 gmake CALL linux_sigreturn(0xffffbb34) >> 8462 gmake RET linux_sigreturn JUSTRETURN >> 8462 gmake CALL linux_wait4(0xffffffffffffffff,0xffffffffffffbe5c,0,0) >> 8462 gmake RET linux_wait4 -1 errno 14 Bad address >> 8462 gmake CALL write(0x2,0xffff96b8,0xa) >> 8462 gmake GIO fd 2 wrote 10 bytes >> "make: *** " >> 8462 gmake RET write 10/0xa >> 8462 gmake CALL write(0x2,0xffff96b8,0x11) >> 8462 gmake GIO fd 2 wrote 17 bytes >> "wait: Bad address" >> 8462 gmake RET write 17/0x11 >> 8462 gmake CALL write(0x2,0x8068727,0x9) >> 8462 gmake GIO fd 2 wrote 9 bytes >> ". Stop. >> " >> 8462 gmake RET write 9 >> 8462 gmake CALL write(0x2,0xffff9618,0x6) >> 8462 gmake GIO fd 2 wrote 6 bytes >> "make: " >> 8462 gmake RET write 6 >> 8462 gmake CALL write(0x2,0xffff9618,0x23) >> 8462 gmake GIO fd 2 wrote 35 bytes >> "*** Waiting for unfinished jobs...." >> >> ...so something's wrong with the linux_wait4() call. > This should be fixed by r217991. This fixed the problem for me as well. Thanks! -- Jacob Frelinger jacob.frelinger@duke.edu CBB Graduate Student
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